LibreOffice 4.0 Writer Guide - The Document Foundation Wiki

Preparing images for black-and-white printing
If color images are to be printed in grayscale, check that any adjacent colors have good contrast
and print dark enough. Test by printing on a black-and-white printer using a grayscale setting.
Better still: change the “mode” of the image to grayscale, either in a photo editor or in Writer itself
(see “Graphics mode” on page 242).
For example, the following diagram looks good in color. The circle is dark red and the square is
dark blue. In grayscale, the difference between the two is not so clear. A third element in the
diagram is a yellow arrow, which is almost invisible in grayscale.
Original drawing in color Drawing printed in grayscale
Changing the colors of the circle and the arrow improves the contrast and visibility of the resulting
grayscale image.
Original drawing in color Drawing printed in grayscale
If the document will be available in black-and-white print only, a better result can often be obtained
by choosing grayscale fills, not color fills—and you don’t have to guess and test to see if you’ve
made good choices.
Adding images to a document
Images can be added to a document in several ways: by inserting an image file, directly from a
graphics program or a scanner, from a file stored on your computer, or by copying and pasting from
a source being viewed on your computer.
Inserting an image file
When the image is in a file stored on the computer, you can insert it into a LibreOffice document
using either of the following methods.
Drag and drop
1) Open a file browser window and locate the image you want to insert.
2) Drag the image into the Writer document and drop it where you want it to appear. A faint
vertical line marks where the image will be dropped.
This method embeds (saves a copy of) the image file in the Writer document. To link the file
instead of embedding it, hold down the Control+Shift keys while dragging the image.
Chapter 8 Working with Graphics 237